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ABB's Modulebus Digital I O Module Redundant Single I/O, Single Power TU841 3BSE020848R11

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ABB's Modulebus Digital I O Module Redundant Single I/O, Single Power TU841 3BSE020848R11

Large Image :  ABB's Modulebus Digital I O Module Redundant Single I/O, Single Power TU841 3BSE020848R11

Product Details:

Place of Origin: India
Brand Name: ABB
Certification: CE
Model Number: TU841 3BSE020848R11

Payment & Shipping Terms:

Minimum Order Quantity: 1
Packaging Details: New Original Box
Delivery Time: In Stock
Payment Terms: T/T / Paypal
Supply Ability: 50
Detailed Product Description
Product Name: Output Module Order No.: TU841 3BSE020848R11
Weight: 0.3 Kg (0.66 Lbs.) I/O Current, DC: 500mA
24 V Consumption Typ: 140 MA Temperature, Operating: 0 To +55 °C
Temperature, Storage: -25 To +70 °C
High Light:

ethernet i o module


digital input output module


ABB's Modulebus Digital I O Module Redundant Single I/O, Single Power TU841 3BSE020848R11



Features and benefits

• A rotary switch for cluster address setting
• Mechanical keying prevents insertion of wrong module type
• Single ModuleBus connection
• Latching device to DIN rail for locking and grounding
• DIN rail mounted


The TU841 is a module termination unit (MTU) for redundant configuration of Optical ModuleBus Modem TB840/TB840A, for use with non-redundant I/O.

The MTU is a passive unit having connections for power supply, a single electrical ModuleBus, two TB840/TB840A and a rotary switch for cluster address (1 to 7) setting.

Four mechanical keys, two for each position, are used to configured the MTU for the right types of modules. Each key has six positions, which gives a total number of 36 different configurations. The configurations can be changed with a screwdriver.

Termination Unit TU840 connects TB840/TB840A to redundant I/O. Termination Unit TU841 connects TB840/TB840A to non-redundant I/O.



General info
Protocol ABB's Modulebus
Article number 3BSE020848R11
Master or slave Not Applicable
Line redundancy Yes
Hot Swap No
Type Redundant TB840/TB840A, Single I/O, Single Power
Power input 24 V d.c (19.2 - 30 V)
Mounting Vertical or Horizontal



Detailed data
24 V consumption typ. N/A
ModuleBus current distribution Maximum 5 V 1.5 A
24 V 1.5 A
Mechanical Keys 36 different combinations
Acceptable wire sizes Solid: 0.2 - 2.5 mm2
Stranded: 0.2 -2.5 mm2, 24 -12 AWG
Recomended torque: 0.5 Nm
Rated insulation voltage 50 V
Dialectic test voltage 500 V a.c
Power dissipation 2.0 W



Environmental and certification
Temperature, Operating 55° C (131° F) horizontal mounted. 40° C (104° F) vertical mounted
Temperature, Storage -25° C (-13° F) to +70° C (158° F)
Equipment class Class 1 according to IEC 60536; (earth protected)
Ingress protection IP20 according to IEC 60529
CE- marking Yes
Electrical Safety cULus
Hazardous location cULus Hazardous Location Class 1 Zone 2, ATEX Zone 2
Marine certificates ABS, BV, DNV-GL, LR, RS, CCS
RoHS compliance EN 50581:2012
WEEE compliance DIRECTIVE/2012/19/EU



Height 186 mm (7.32 in.) including latch
Width 124 mm (4.88 in.)
Depth 47 mm (1.85 in.)
Weight (including base) 0.45 kg (0.99 lbs.)





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